Document
Obsolete
54F 74F219 64-Bit Random Access Memory with TRI-STATE Outputs
November 1994
54F 74F219 64-Bit Random Access Memory with TRI-STATE Outputs
General Description
The ’F219 is a high-speed 64-bit RAM organized as a 16-word by 4-bit array Address inputs are buffered to minimize loading and are fully decoded on-chip The outputs are TRI-STATE and are in the high-impedance state whenever the Chip Select (CS) input is HIGH The outputs are active only in the Read mode This device is similar to the ’F189 but features non-inverting rather than inverting data outputs
Features
Y TRI-STATE outputs for data bus applications Y Buffered inputs minimize loading Y Address decoding on-chip Y Diode clamped inputs minimize ringing Y Available in SOIC (300 mil only)
Commercial 74F219PC
74F219SC (Note 1) 74F219SJ (Note 1)
Military 54F219DL (Note 2)
54F219FL (Note 2) 54F219LL (Note 2)
Package Number N16E J16A M16B M16D W16A E20A
Package Description
16-Lead (0 300 Wide) Molded Dual-In-Line 16-Lead Ceramic Dual-In-Line 16-Lead (0 300 Wide) Molded Small Outline JEDEC 16-Lead (0 300 Wide) Molded Small Outline EIAJ 16-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C
Note 1 Devices also available in 13 reel Use suffix e SCX and SJX Note 2 Military grade device with environmental and burn-in processing Use suffix e DLQB FLQB and LLQB
Logic Symbol
Connection Diagrams
Pin Assignment for DIP SOIC and Flatpak
Pin Assignment for LCC
TL F 9500–1
TL F 9500 – 2
TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9500
TL F 9500 – 3 RRD-B30M105 Printed in U S A
Obsolete
Unit Loading Fan Out
Pin Names
Description
A0 – A3 CS
WE
D0 – D3 O0 – O3
Address Inputs Chip Select Input (Active LOW) Write Enable Input (Active LOW) Data Inputs TRI-STATE Data Outputs
54F 74F
UL HIGH LOW
10 10 10 20 10 10 10 10 150 40 (33 3)
Input IIH IIL Output IOH IOL
20 mA b0 6 mA 20 mA b1 2 mA 20 mA b0 6 mA 20 mA b0 6 mA b3 mA 24 mA (20 mA)
Function Table
Inputs CS WE
Operation
LL LH HX
Write Read Inhibit
H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial
Condition of Outputs
High Impedance True Stored Data High Impedance
Block Diagram
TL F 9500 – 4
2
Obsolete
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications
Storage Temperature
b65 C to a150 C
Ambient Temperature under Bias
b55 C to a125 C
Junction Temperature under Bias Plastic
b55 C to a175 C b55 C to a150 C
VCC Pin Potential to Ground Pin
b0 5V to a7 0V
Input Voltage (Note 2)
b0 5V to a7 0V
Input Current (Note 2)
b30 mA to a5 0 mA
Voltage Applied to Output
in HIGH State (with VCC e 0V) Standard Output
TRI-STATE Output
b0 5V to VCC b0 5V to a5 5V
Current Applied to Output
in LOW State (Max)
twice the rated IOL (mA)
Note 1 Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired Functional operation under
these conditions is not implied
Note 2 Either voltage limit or current limit is sufficient to protect inputs
Recommended Operating
Conditions
Free Air Ambient Temperature Military Commercial
b55 C to a100 C 0 C to a70 C
Supply Voltage Military Commercial
a4 5V to a5 5V a4 5V to a5 5V
DC Electrical Characteristics
Symbol
Parameter
VIH VIL VCD VOH
VOL IIH IBVI ICEX VID IOD IIL IOZH IOZL IOS IZZ ICC
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
Output LOW Voltage Input HIGH Current
54F 10% VCC 54F 10% VCC 74F 10% VCC 74F 10% VCC 74F 5% VCC 74F 5% VCC
54F 10% VCC 74F 10% VCC
54F 74F
Input HIGH Current 54F
Breakdown Test
74F
Output HIGH Leakage Current
54F 74F
Input Leakage Test
74F
Output Leakage Circuit Current
74F
Input LOW Current
Output Leakage Current
Output Leakage Current
Output Short-Circuit Current
Bus Drainage Test
Power Supply Current
54F 74F
Min Typ Max
20
08
b1 2
25 24 25 24 27 27
05 05
20 0 50
100 70
250 50
4 75
3 75
b0 6 b1 2
50
b50
b60
b150
500
37 55
Units V V V
V
V mA mA mA V mA mA mA mA mA mA mA
VCC
Min
Min
Min Max Max Max 00 00 Max Max Max Max 0 0V Max
Conditions
Recognized as a HIGH Signal Recognized as a LOW Signal IIN e b18 mA IOH e b1 mA IOH e b3 mA IOH e b1 mA IOH e b3 mA IOH e b1 mA IOH e b3 mA IOL e 20 mA IOL e 24 mA VIN e 2 7V
VIN e 7 0V
VOUT e VCC
IID e 1 9 mA All Other Pins Grounded VIOD e 150 mV All Other Pins Grounded VIN e 0 5V (An WE Dn) VIN e 0 5V (CS) VOUT e 2 7V VOUT e 0 5V VOUT e 0V VOUT e 5 25V
3
Obsolete
AC Electrical Characteristics
Symbol
Parameter
tPLH tPHL
tPZH tPZL
tPHZ tPLZ
tPZH tPZL
tPHZ tPLZ
Access Time HIGH or LOW An to On
Access Time HIGH or LOW CS to On
Disable Time HIGH or LOW CS to On
Write Recovery Time HIGH or LOW WE to On
Disable Time HIGH or LOW WE to On
74F
TA e a25 C VCC e a5 0V
CL e 50 pF Min Typ Max
10 0 18 5 26 0 8 0 13 5 19 0
35 60 85 5 0 9 0.